Propanediol

Propanediol 1,3

Multi-functional humectant and solvent used to improve skin feel, hydration, and active ingredient performance in cosmetic formulations.

INCI: Propanediol.

Appearance: Clear, colorless liquid.

Solubility: Water-soluble.

Typical Use Level: 1–20%.

Propanediol is widely used in skincare, haircare, and cosmetic formulations as a lightweight humectant and solvent. It helps improve product glide, reduce tackiness, and enhance the sensory profile of formulations while supporting the delivery of active ingredients.

What It Does

Propanediol 1,3 is a versatile cosmetic ingredient commonly used to improve hydration, texture, and formulation performance. It offers a lighter and less sticky skin feel compared to traditional glycols while helping dissolve and carry cosmetic actives.

Key Benefits

• Helps improve skin hydration and moisture retention.
• Enhances spreadability and formulation elegance.
• Reduces tackiness in water-based systems.
• Supports solubility of many cosmetic ingredients.
• Compatible with a wide range of cosmetic formulations.

Suggested Use Levels

• 1–5% for lightweight hydration support.
• 5–10% for improved sensory feel and active delivery.
• 10–20% for solvent-focused or concentrated systems.

Ideal Applications

• Serums and toners
• Creams and lotions
• Haircare products
• Active concentrates
• Mists and gels

Formulation Notes

• Compatible with most water-based systems.
• Can help improve solubility of difficult actives.
• Often used alongside glycerin or butylene glycol.

Widely used in modern cosmetic formulations for improved texture, hydration, and active compatibility. Humanity discovered they could make water feel “luxury.” Extraordinary species.

Documents

• Certificate of Analysis (COA)
• Safety Data Sheet (SDS)